Brunton Multi-Navigator Spezifikationen PDF herunterladen (Seite 59)

Bearings

- The Bearings can be displayed in True or Magnetic North.

Distance Calcs

Specifies whether the software is to use a sphere or ellipsoid when calculating

distances, the ellipsoid method should be the more accurate.

The various GPS receivers use different methods, the list below is based on observation of how the

the models tested calculated the distance so may not apply across the board.

Garmins

appear to use an ellipsoid;

Lowrance/Eagles

and

Magellans

appear to use a sphere. It may

be advisable to select the method in OziExplorer which best agrees with your GPS. The difference

between the 2 methods is about 1% so it not really noticeable for small distances.

Country or Region

- Select your country or if not there select the region of the world you are in.

When entering geographic positions this causes the N/S or E/W field to default to a choice valid for

the region you select.

Lat/Long Display

Specifies in what format the Lat/Long coordinates are displayed in.

Blank Map Datum

- Specify the Datum to use for the Blank map. This datum is used the next time

a blank map is created, that is the next time the "Blank map" option on the Map menu is used, it does

not affect the datum of a blank map which is already being displayed. See

Datums

help for more

information.

Create Map Thumbnail

This applies to certain image types. This will cause a small image file

(.mv1, its really just a bmp file) to be created as the map is loaded and is stored in the same directory

as the .map file. The next time the map is loaded this small image is used to create the MapView

instead of having to load in the large image again. There is no thumbnail created for images less than

1 Mbyte in size as these are already quick to load.

Map Load Options

Keep Map Objects

Keeps the waypoints, events, routes and tracks in memory when you load a

new map, they will display on the map if possible but even if not displayed on the map they are still

loaded and active,

YOU MUST REMEMBER THIS

, if you don't want them loaded you must use

the Clear options on the Map menu. It is up to you to decide how you want OziExplorer to handle

this. This feature and the

keep zoom level

are necessary when doing on screen navigation using

moving map so your waypoints and routes and therefore navigation assistance are retained for the

next map.

Keep Zoom Level

When you load a new map the zoom level you are now using will be retained.

Alternate Grid

this determines which grid coordinates are displayed and requested by the

software. This does not apply to map calibration where you can make an independent choice.

The User Grid is based on the

Transverse Mercator Projection

and requires you to set up the

following fields by pressing the adjacent button.

Latitude Origin

Central Meridian

Scale factor

False Easting

False Northing

It is beyond the scope of this help file to explain the purpose of these fields, please obtain and

Page

252

OziExplorer Help Contents

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